Abstract:
WHEREIN R is selected from the group consisting of hydrogen and alkyl of 1 to 7 carbon atoms, R1 is selected from the group consisting of hydrogen and carbalkoxy of 1 to 7 alkyl carbon atoms, R2 is selected from the group consisting of hydrogen, carboxy and carbalkoxy of 1 to 7 alkyl carbon atoms, R3 is selected from the group consisting of hydrogen and Alpha tetrahydropyranyl, m is 3,4 or 5 and n is 2,3 or 4 with the proviso that when R1 is carbalkoxy, R is alkyl of 1 to 7 carbon atoms, R2 is hydrogen and R3 is Alpha -tetrahydro pyranyl; when R2 is carbalkoxy, R is alkyl of 1 to 7 carbon atoms, R1 is hydrogen and R3 is Alpha -tetrahydropyranyl and when R2 is carboxy, R and R1 are hydrogen and R3 is Alpha tetrahydropyranyl, which possess the physiological activity of prostaglandins, and salts thereof when R, R1, R2 and R3 are hydrogen, with non-toxic, pharmaceutically acceptable bases and their preparation.
Abstract:
Novel alkyl 3-(3''-OR-trans 1''-alkenyl)-cyclopentanone-2carboxylates of the formula
WHEREIN Alk is alkyl of 1 to 7 carbon atoms, R is selected from the group consisting of hydrogen, acyl of an organic carboxylic acid of 1 to 18 carbon atoms and Alpha -tetrahydropyranyl and m is 3, 4 or 5 which are intermediates for prostaglandins and their preparation and novel intermediates.
Abstract:
A process for the production of alkyl 3,11-dimethyl-7-ethyl2,6,10-tridecatrienoates starting from the S-oxide of 4-methyl5,6-dihydro-2H-thiapyran, 1-oxa-6-thia-spiro/2,5/octane and alkyl 3-methyl-4-halo-2-butenoate and the novel intermediates. The alkyl 3,11-dimethyl-7-ethyl-2,6,10-tridecatrienoates are intermediates in the synthesis of the juvenile hormone.
Abstract:
Novel intermediates formed in the process for the preparation of derivatives of prostanoic acids of the prostaglandin A2 (PGA2) group of the formula
WHEREIN R is selected from the group consisting of hydrogen and lower alkyl, n is a whole number of 2,3 or 4 and m is a whole number of 3,4 or 5 and to novel intermediates produced in the said process.